Effect of preheat temperature and welding sequence on the temperature distribution and residual stress in the weld overlay repair of hydroturbine runner

J He, M Wei, L Zhang, C Ren, J Wang, Y Wang, W Qi - Materials, 2022 - mdpi.com
The hydroturbine runner is the core of the whole hydroelectric generating unit, which is
employed to transform water energy into mechanical energy. In the process of service, the …

Performance Analysis of 3D Printed Pelton Wheel Turbine at Various Pressure Heads

L Lebea, T Gaonnwe - 2023 14th International Conference on …, 2023 - ieeexplore.ieee.org
The increased usage of 3D printers, has made it possible to fabricate a complex shape
without compromising the structural integrity of the component. However, the application of …

Prediction of bead geometry on filling cavities in hydroelectric turbine blades by means of robotic welding

JLL Plata, GC de Carvalho… - Journal of Physics …, 2022 - iopscience.iop.org
This paper presents a methodology of mapping the bead geometry, deposited on a fillet like
joint, as a function of the input parameters of the synergic pulsed gas metal arc welding …